Determine the hierarchical order of soil taxanomy, Science

Assignment Help:

Determine the hierarchical order of soil taxanomy

Order: At this highest level of generalisation, the soils are distinguished on the basis of the degree of horizon development and the kinds of horizons present. There are eleven orders whose names end in  sol (Latin, solum, soil).

Suborder:  The orders are subdivided into suborders on the basis of physical , chemical and morphological properties  that reflect the presence or absence of waterlogging and vegetation. Each order has a number of suborders and as many as 47 suborders are recognised. 

Greatgroup:  This category contains soils that have same kinds  of horizons in the same sequence having similar temperature, moisture regimes and also have similar base status. More than 230 greatgroups are recognised. 

Subgroup:  Three kinds of subgroups have been recognised; these are  typic groups, intergrades  and extragrades. The  typic  groups show the central properties of the greatgroup; the intergrade subgroup shows properties of more than one greatgroup while the extragrade subgroup has properties which do not belong to any greatgroup. More than 1200 subgroups are recognised. 

Family: In this category the soils have been grouped together largely on the basis of physical and mineralogical properties that are important for plant growth. On the basis of properties like soil texture, temperature regime, mineralogy and  thickness of the soil permeable to the roots, as many as 6600 families of soils have been recognised. 

Series:  The soil series is the most specific unit of classification which consists of soils that are similar in all major profile characteristics. Conc eptually it represents a contiguous polypedon, however in the field it may include aggregates of polypedons and the associated inclusions. In field soil surveys the soil series are sometimes further subdivided into soil phases on the basis of surface soil  texture or other characteristics.  

 


Related Discussions:- Determine the hierarchical order of soil taxanomy

Calculate the volume of paper wastes and miscellaneous waste, 1. The solid ...

1. The solid wastes from a summer camp with 100 children and a staff of 25 are to be collected once per week. If bottles and cans (representing 20% of the weight) are removed, pape

Biot law, biot law mathmatical description

biot law mathmatical description

Greenhouse effect, Greenhouse effect: Scientists  have reason to believ...

Greenhouse effect: Scientists  have reason to believe that air pollution. both due to carbon particles or soot and carbon dioxide would affect weather. A rise in surface temper

Excretory function of bile, Excretory Function of Bile Excretory functi...

Excretory Function of Bile Excretory function: Bile pigments (bilirubin and biliverdin) are the waste products of the breakdown of red blood cells and bile is their route of ex

Calculate the maximum channel capacity, The Maximum theoretical limit of ch...

The Maximum theoretical limit of channel is governed by Nyquist theorem, which says Bth = 2 x freq in hertz x log2L ( where L = number of level) Thus we have in this case Bth= 2x60

Atoms and elements, why the atoms in neon gas do no join up in the same way...

why the atoms in neon gas do no join up in the same way that hydrogen atoms do?

Write a short note on ozone in the atmosphere, Question: a) How does te...

Question: a) How does temperature changes in the stratosphere? Give a physical explanation and illustrate your answer using a diagram. b) Write a short note on ozone in the

Define the auditory area of the cerebrum, Define the auditory area of the C...

Define the auditory area of the Cerebrum The auditory area lies immediately below lateral sulcus within the temporal lobe as can be seen in Figure. Cells receive and interpret

When does an atoll start to form, When does an atoll start to form? Thi...

When does an atoll start to form? This starts to form when tiny marine animals - coral polyps - attach themselves to rocks on the seabed.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd